TO LATE MODEL SERIES
(All vehicles must comply with
General Rules, except where exempted in this section)
1. Body must be
basically stock appearing, aluminum, fiberglass, or metal.
2. 6 1/2 inch
1. Fuel cell
required, MUST be mounted behind rear axle. 22-gallon maximum.
9-inch ground clearance at 3-inch ride height, 10-inch at 4-inch
2. Left side
window net requires.
3. Seat belt and
shoulder harness required. All belts must be quick release types
(minimum 3-inches wide). Harness must be type that comes
individually over both shoulders. Racing seat only. Seat must be
bolted to roll cage. Highly recommended you use a full containment
4. Two (2) drive
shaft supports are required. No carbon fiber drive shafts
permitted. Drive shaft must be painted white.
5. Fire suits are
6. Roll bars
minimum 1 3/4 inch tubing with .095 thickness wall.
7. a. Must have
minimum 2-pound fire extinguisher with a gauge and a quick release
mounted securely in car within reach of driver while belted in car.
recommended, at least a 5 pound to 10 pound fire bottle with at
least two nozzles spraying into driver's cockpit.
8. All weight
(lead) must be mounted above frame/inside frame rail with a minimum
of two (2) 1/2-inch bolts. All weights are to be painted white with
the car number painted on each piece. Any driver that loses any led
from his/her car will be fined $250 payable prior to any further
competition. This rule is in effect during race day or practice
9. Fuel line must
be braided stainless steel hose. If it passes through the interior
it must be run in 1-inch conduit.
compartment in all areas within driver's hand reach must be padded.
11. All drive
comfort systems must be mounted in driver's compartment and secured
12. No adjusters
inside driver's compartment other than front to rear brake bias.
This means no sway bar, weight jackers, or shock adjusters.
1. Wheelbases of
101 inches to 105 1/2 inches. Fabricated or clip cars.
2. Engine may be
moved rearward so the left front plug is no more than 4 inches
behind the left ball joint. No further back.
3. Maximum tread
with 66 1/2 inches, center wheel to center wheel.
clearance to frame MUST be a minimum of 3 inches with driver.
crankshaft must be no less than 10 inches from ground with driver.
6. NO titanium
parts will be permitted.
D. MACHINED ENGINES
1. Engines may be
interchanged within different car bodies.
2. Flat top
pistons with zero (0) deck clearance. Maximum cubic inch 360.
3. Any type of
flat tappet cam.
4. Roller camshaft
allowed (see weight rules).
5. Lifter must be
6. Any type
magnetic steel rod - NO ALUMINUM RODS. 6.25 maximum length.
7. Dry sump
permitted (see weight rules).
8. Heads must be
strictly stock with no less than 62 c.c.'s (see weight rules).
9. No 461 or 461X
head allowed. No SB2 Chevy or equivalent Ford or Dodge allowed.
10. Dart heads
permitted (see weight rules).
11. Valve seats can
be cut for 2.02 valve.
12. No porting or
polishing of heads anywhere. No deburring (see weight rules).
Ford-N-Head - Part #M-6049-N351 or Part #M9429C358. Valves: intake
2.20, exhaust 1.60. 62cc Runner cc 190-195.
14. CHEVY: 492 -
Part #3987376. Valves: intake 2.02 exhaust 1.60 62cc. Vortek - Part
#12529093. Valves: intake 2.02 exhaust 1.60 62cc. Bow Tie - Part
#10134392. Valves: intake 2.02 exhaust 1.60 62cc. Runner cc
15. Intake can be
Holley #300-38, Edelbrock #5001 or #2919, or Victor Jr. with no more
than 2275cc. Ford permitted to use Victor Torquer Part #2980,
#2940, or #2941, Weind X-celerator #7515. Chrysler may use Victor
XX-2 or Weind X-celerator #7545. May use two-barrel Edelbrock
intake #2901 or #2913.
16. No vacuum leaks
between intake valve and top of carburetor.
17. Any adapter
(metal or fiber) must be centered on intake.
18. Adapter plate
and gaskets cannot exceed 1 1/2 inch in thickness.
19. No aluminum
20. 3.48/3.50 stroke
(see weight rules).
21. No vacuum pumps
on crate or built engines.
E. MACHINED ENGINE CARBURETORS
carburetor will be 500 CFM Holley 4412 two-barrel with round hole.
Top and bottom of carburetor may be checked for 1 11/16 throttle
bore and 1 3/8 venturi. 1.5" maximum carburetor spacer permitted.
F. CRATE ENGINES
1. The following
crate engines are approved for the season: GM Part #88958602; GM
Part #88958603; GM Part #88958604; Ford Part #M6007-D347; or Dodge
2. Engines must
remain stock as they come from manufacturer - NO CHANGES (i.e.
rocker arms, intake, etc.) (see weight rules).
3. All Chevy crate
engines may run MSD distributor and Crane ignition unit, same as ASA.
4. May run 1 inch
spacer under carburetor.
5. Two (2)
one-piece open hole gasket maximum - 0.065 inch thickness that
matches the interior dimension of the carburetor throttle base
plate. Maximum thickness INCLUDING spacer is 1 1/8 inch with no air
G. CRATE ENGINE CARBURETOR
1. Must run Holley
carburetor model No. 4150, Part No. 805411 650 CFM four-barrel.
Carburetor must remain absolutely stock. Jets, air bleed jets, and
power valves may be changed. No other modifications of any kind will
F. TIRES AND WHEELS
1. Wheels - 10
inches wide. Steel wheels only. No half sizes.
2. Tires - Hoosier
1070 will be track tire.
Racing tires must be purchased from official track supplier.
1. Crate engines
minimum 2,800 pounds.
aluminum machined engines or Hamner engines 3,000 pounds.
H. TRANSMISSION/REAR END
1. Bert and Brinn
transmissions will be permitted.
2. Quick Change
rear ends will be permitted.
I. TRACTION CONTROL
1. No traction
control devices of any kind allowed. Anyone caught with one will
receive a $500 fine and will be suspended for two events.
pound weight break for any car running the following carburetor: 500
CFM Holley 4412 two-barrel with round hole. Carburetor may be
checked for 1 11/16 throttle bore and 1 3/8 venturi. 1.5-inch
maximum carburetor spacer permitted.
K. ENGINE TEARDOWN
1. Engines are be
subject to teardown for inspection purposes.
L. REAR SPOILER
maximum height and 60-inch maximum width permitted on rear spoiler,
with rear bracing only. No sideboards or wraparounds will be
1. Car and driver
must weigh correct before qualifying and after race.
1. Protest fee
will be $500.
2. Only drivers
taking part in the feature race that evening are eligible to file a
protest. Drivers may only protest a car that finished in front of
them in the feature race.
3. Any driver
wishing to protest another competitor's engine must present $500
protest fee in cash to the competition director at the scale
immediately following the feature race.
4. Track officials
will check valve size, CC the heads, check for porting and
polishing, check bore and stroke, and for flat top pistons.
If the inspection reveals the engine to be legal, the protested
car's driver will receive $400 of the protest fee, with the track
receiving the remaining $100.
If the inspection reveals the engine not to be legal, the protesting
driver will be refunded $450 with the track keeping $50.